UIImage与UIColor互转

Objective-C

UIColor -> UIImage

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- (UIImage*) createImageWithColor: (UIColor*) color

{

    CGRect rect=CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);

    UIGraphicsBeginImageContext(rect.size);

    CGContextRef context = UIGraphicsGetCurrentContext();

    CGContextSetFillColorWithColor(context, [color CGColor]);

    CGContextFillRect(context, rect);

    UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return theImage;

}

UIImage -> UIColor

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[UIColor colorWithPatternImage:[UIImageimageNamed:@"Background"]]

Swift

UIColor -> UIImage

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func createImageWithColor(color: UIColor) -> UIImage

{

    let rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f)

    UIGraphicsBeginImageContext(rect.size)

    let context = UIGraphicsGetCurrentContext()

    CGContextSetFillColorWithColor(context, color.CGColor)

    CGContextFillRect(context, rect)

    let theImage = UIGraphicsGetImageFromCurrentImageContext()

    UIGraphicsEndImageContext()

    return theImage

}

UIImage -> UIColor

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UIColor(PatternImage: UIImage(named: @"Background"))
时间： 2024-10-15 11:27:06

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